Portable harbor.



E. P. THORNE.

PORTABLE HARBOR.

APPLICATION mso DEc.2l. |914.

Patented May 23,1916.

Zfarze Yea l UNITED STATES PATENT OFFICE.

EDWIN P. THORNE, 0F FOREST CITY, SOUTH DAKOTA.

PORTABLE HARBOR.

Application led December 21, 1914.

To all 'whom t may concern Be it known that I, EDWIN I. THORNE, anative-born citizen of the United States, residing at Forest City, inthe county of Potter and State of South Dakota, have invented certainnew and useful Improvements in Portable Harbors; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to improvements in harbors and has for its objectto provide a simple and inexpensive harbor which may readily betransported from place to place and which, when in use, will effectivelyprotect motor boats, canoes, and other small craft, against injury orswamping which might otherwise be caused by the action of heavy windstorms and rough water. To the above end, I employ certain novelfeatures of construction and combination herein described and claimedand shown in the accompanying drawings wherein Figure 1 is a top planview showing the application of the invention to use, it being shown inone of its adjusted positions; Fig. 2 is a view similar to Fig. 1 butshowing another position; and Fig. 3 iS a side view of the inventionapplied to use.

In these drawings, forming a part of this application, thek letter Sdesignates the shore bordering a body of water B. Projecting outwardlyfrom the shore S, a suitable distance above the wateris a pair ofoutwardly converging bars or planks 1 whose inner ends are provided withopenings through which stakes 2 may be driven, thereby retaining them infixed relation. The outer ends of the bars 1 overlap each other and areheld in this position by a bolt 3 which passes through both of theseends and through the parallel arms of a U-shaped clip 4, the latterbeing Vpassed through a loop 5 which is secured by any appropriate meansto a raft structure 6, whereby this structure is pivotally connectedwith the bars 1. The raft 6 is here shown `as formed of a plurality oflogs 7 and a rectangular timber 8, the

Specification of Letters Patent.

Patented May 23, 1916.

serial No. 878,413.

latter being located adjacent the shore but being spaced a considerabledistance outwardly therefrom, said logs and bar being connected atintervals by transverse tie beams 9. With the parts constructed in thismanner, the raft may be positioned as seen in Fig. l when the waves arecoming directly in shore and the launch L or other boat, may be run inbetween the shore and said raft, whereby the latter will break the forceof incoming waves and will prevent the same from damaging or swampingthe boat. If the waves are coming in toward the shore at an angle otherthan a rightangle, the raft may be swung to the position seen in fulllines in Fig. 2 or to that seen in dotted lines in this figure, thedirection in which the raft is swung, being determined by the directionof the Waves. In either case, the boat will be fully protected.

I have described certain details of construction for reducing theinvention to an operative Structure, but it will be readily understoodthat I need not be limited to such details other' than as specified inthe appended claims.

I claim l. A harbor comprising a support to be anchored to the shore andto extend therefrom above a body of water, and an elongated raft pivotedcentrally between its ends to said support, said ends of the raft beingfree, thus allowing it to be presented broadside to incoming wavesregardless of the angle at which the latter travel, such waves having notendency to turn the raft around its pivot, due to the location of thelatter centrally between the ends of the raft.

2. A harbor comprising a pair of converging bars to be secured at theirwidely spaced ends to the shore, their other ends being overlapped andadapted to be disposed above a body of water, a U-shaped clip embracingthe overlapped ends of the bars, a bolt passing through the ends of theclip and through said overlapped ends of the bars, an elongated raft,and a loop secured to one side of said raft centrally between its endsand receiving the clip, the

ends of the raftloeingg free, thus allowing it In testimony whereof Ihave hereunto set to be presented broadside to incoming waves my hand inpresence of two subscribing witregardless of the angle .at which thelatter nesses.

travel, such waves having no tendency to EDWIN P. THORNE. turn the raftaround its pivotal mounting, Witnesses:

due to the location of the latter centrally be- WILLIAM SCHooF,

tween the ends of said raft. BEssIE SCHooF.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, D. C."

